KR20000015052U - Bonded Structure of Sintered Friction Material of Brake for Railway Vehicles - Google Patents

Bonded Structure of Sintered Friction Material of Brake for Railway Vehicles Download PDF

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Publication number
KR20000015052U
KR20000015052U KR2019980028431U KR19980028431U KR20000015052U KR 20000015052 U KR20000015052 U KR 20000015052U KR 2019980028431 U KR2019980028431 U KR 2019980028431U KR 19980028431 U KR19980028431 U KR 19980028431U KR 20000015052 U KR20000015052 U KR 20000015052U
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South Korea
Prior art keywords
hold
friction material
plate
sintered friction
mesh
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KR2019980028431U
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Korean (ko)
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KR200338391Y1 (en
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박우진
김기열
김상호
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추호석
대우중공업 주식회사
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Priority to KR2019980028431U priority Critical patent/KR200338391Y1/en
Publication of KR20000015052U publication Critical patent/KR20000015052U/en
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Publication of KR200338391Y1 publication Critical patent/KR200338391Y1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H5/00—Applications or arrangements of brakes with substantially radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
    • B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
    • B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
    • B60T1/065—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels employing disc
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/30—Railway vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/04—Attachment of linings
    • F16D2069/0425—Attachment methods or devices
    • F16D2069/045—Bonding
    • F16D2069/0458—Bonding metallurgic, e.g. welding, brazing, sintering

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Braking Arrangements (AREA)

Abstract

본 고안은 철도차량용 브레이크의 소결마찰재 접합구조에 관한 것으로, 바닥면에 걸림턱과 관통구멍을 갖춘 철망형태의 메시홀더의 내부에 환형의 홀드플레이트가 끼워져 상기 메시홀드의 걸림턱에 홀드플레이트의 접합턱이 걸려진 상태에서 접합되고, 상기 메시홀드의 바닥면에 형성된 관통구멍을 통해 이 메시홀드의 외부로 노출된 홀드플레이트의 돌기부가 백플레이트에 접합되어있으며, 상기 홀드플레이트에 브레이크 마찰재인 소결마찰판이 소결성형 접합되어 있는 구조로 되어 있다. 이러한 구조로 이루어져 있는 본 고안은, 고속철도차량에서 제동시에 발생하는 고온의 열에 의해 소결마찰재와 메시홀드와 홀드플레이트에 전달되어도 상기 소결마찰재와 홀드플레이트사이에 열팽창과 수축에 의한 박리현상이 일어나지 않게하여 고속철도차량의 안전을 도모할 수가 있게 한 것이다.The present invention relates to a sintered friction material joining structure of a brake for a railroad vehicle, and an annular hold plate is inserted into a mesh holder of a wire mesh type having a locking jaw and a through hole at a bottom thereof, and thus the holding plate is joined to the locking jaw of the mesh hold. The sintered friction plate is joined to the back plate, and the projection of the hold plate exposed to the outside of the mesh hold is connected to the back plate through a through hole formed in the bottom surface of the mesh hold. This sintered molding is joined. The present invention having such a structure prevents peeling due to thermal expansion and contraction between the sintered friction material and the hold plate even if the sintered friction material and the mesh hold and the hold plate are transferred to the sintered friction material and the hold plate by the high temperature heat generated during braking in a high speed railway vehicle. The high-speed rail vehicle can be secured.

Description

철도차량용 브레이크의 소결마찰재 접합구조(Assembling construction of the sintered friction material in a brake of a rail car)Assembling construction of the sintered friction material in a brake of a rail car

본 고안은 철도차량용 브레이크의 소결마찰재 접합구조에 관한 것으로, 특히브레이크 동작시에 발생되는 높은 열에 의해 소결마찰재와 이 소결마찰재가 부착되어 있는 홀드플레이트사이에 열변형에 의한 박리현상이 발생되지 않게 한 철도차량용 브레이크의 소결마찰재 접합구조에 관한 것이다.The present invention relates to a sintered friction material joining structure of a brake for a railway vehicle, and in particular, a high temperature generated during brake operation prevents delamination due to thermal deformation between the sintered friction material and the hold plate to which the sintered friction material is attached. A sintered friction material joining structure of a brake for a railway vehicle.

일반적으로 철도차량등에서 사용되는 제동장치에는 습식 브레이크와 소결브레이크 등 여러 가지 종류가 있다. 그 중에서 고속으로 운행하는 고속철도차량은 제동시 고온의 마찰열이 발생하므로, 고속철도차량에는 주로 내열성이 높은 소결브레이크 시스템이 사용되고 있다.Generally, there are various types of braking devices used in railway vehicles such as wet brakes and sintered brakes. Among them, high-speed rail cars that run at high speed generate frictional heat of high temperature during braking, and therefore, sinter brake systems having high heat resistance are mainly used for high-speed rail cars.

한편, 소결브레이크 시스템에 사용되는 소결마찰재는 취성이 높기 때문에, 그 자체로 하나의 완전한 부품을 만들어 다른 부품에 직접 결합시킬 수가 없다.On the other hand, since the sintered friction material used in the sinter brake system is highly brittle, it cannot make one complete part by itself and directly bond it to another part.

따라서, 통상 소결마찰재로 만들어진 브레이크 마찰재는 별도의 다른 지지기구에 지지되어 브레이크판에 연결되게 사용되게 된다.Therefore, the brake friction material, which is usually made of sintered friction material, is supported by another separate supporting mechanism to be used to be connected to the brake plate.

즉, 도면 3 에 도시된 바와 같이, 차량의 바퀴에 설치된 제동디스크와 직접 마찰하는 원통형상의 소결마찰재(31)가 철망형태로 이루어진 메시홀더(32)에 담겨진 상태에서 홀드플레이트(33)에 접합되어 있는데, 메시홀더(32)와 홀드플레이트(33)의 연결은 이 메시홀더(32)의 바닥면에 형성된 걸림턱(34)을 통해 이루어지도록 되어 있다.That is, as shown in Figure 3, the cylindrical sintered friction material 31 directly friction with the braking disk installed on the wheel of the vehicle is bonded to the hold plate 33 in the state contained in the mesh holder 32 made of a wire mesh form There is a connection between the mesh holder 32 and the hold plate 33 is made through the locking step 34 formed on the bottom surface of the mesh holder 32.

따라서, 상기 메시홀더(32)의 걸림턱(34)이 소결마찰재(31)와 홀드플레이트(33)사이에 위치하게 되고, 상기 걸림턱(34)의 바깥쪽에서 홀드플레이트(33)와 메시홀더(32)가 용접연결되어 있기 때문에, 이 연결부분이 800도 이상의 고온과 냉각이 되풀이 되는 과정에서 열변형에 의해 박리되는 문제가 발생한다.Accordingly, the locking jaw 34 of the mesh holder 32 is positioned between the sintered friction material 31 and the hold plate 33, and the hold plate 33 and the mesh holder (outside the locking jaw 34) are located at the outer side of the locking jaw 34. Since 32) is welded, a problem arises in that the connecting part is peeled off by heat deformation in the course of repeated high temperature and cooling of more than 800 degrees.

즉, 상기 소결마찰재(31)가 바퀴에 설치되어 있는 브레이크판(도시안됨)과 마찰하면서 발생되는 고온의 열이 상기 메시홀더(32)와 홀드플레이트(33)에 전달되고, 이들 메시홀더(32)와 홀드플레이트(33) 및 소결마찰재(31)간의 열팽창계수의 차이에 의해 용접부가 떨어지게 되고, 그 결과 소결마찰재(31)가 홀더플레이트(33)에 밀착되지 못하고 박리되게 되는 것이다.That is, high temperature heat generated while the sintered friction material 31 rubs against the brake plate (not shown) installed on the wheel is transferred to the mesh holder 32 and the hold plate 33, and these mesh holders 32 ), The weld part is dropped by the difference in the coefficient of thermal expansion between the hold plate 33 and the sintered friction material 31, and as a result, the sintered friction material 31 is not adhered to the holder plate 33 and peeled off.

더욱이, 상기 소결마찰재(31)와 홀더플레이트(33)사이에 끼워진 메시홀더(32)의 걸림턱(34)이 소결마찰재(31)와 홀더플레이트(33)사이게 끼워진 구조로 되어 있기 때문에, 상기 소결마찰재(31)와 홀더플레이트(33)사이에 약간의 공기층(35)이 존재하게 되고, 이 공기층(35)에 상기 소결마찰재(31)으로부터 고온의 온도가 전달되게 되면, 공기의 팽창계수가 소결마찰재(31)의 열팽창계수보다 크기 때문에 소결마찰재(31)가 녹는 온도에까지 도달하더라도 상기 소결마찰재(31)가 홀더플레이트(33)에 밀착되지 못하고 홀더플레이트(33)와 소결마찰재(31)사이에 기공이 존재하게 된다.Furthermore, since the locking jaw 34 of the mesh holder 32 sandwiched between the sintered friction material 31 and the holder plate 33 has a structure sandwiched between the sintered friction material 31 and the holder plate 33, When a slight air layer 35 is present between the sintered friction material 31 and the holder plate 33, and the high temperature is transmitted from the sintered friction material 31 to the air layer 35, the expansion coefficient of air is Since the coefficient of thermal expansion of the sintered friction material 31 is greater than the temperature at which the sintered friction material 31 melts, the sintered friction material 31 does not come into close contact with the holder plate 33, and is formed between the holder plate 33 and the sintered friction material 31. There is a pore in it.

따라서, 이 상기 공기층(35)의 기공으로 인하여 소결마찰재(31)와 메시홀더(32)가 인장되거나 충격을 받게 되면 홀더플레이트(33)로부터 쉽게 박리되어 떨어져 나가게 되는 것이다.Therefore, when the sintered friction material 31 and the mesh holder 32 are tensioned or impacted due to the pores of the air layer 35, the sintered friction material 31 and the mesh holder 32 are easily peeled off from the holder plate 33.

이와 같이 소결마찰재(31)가 홀드플레이트(33)에서 떨어져 나가면 제동력을 발휘하는데 문제점이 있게 되고, 특히 고속으로 주행하는 철도차량에 있어서는 제동력이 손상으로 인해 큰 사고를 일으킬 수 있는 문제점이 있는 것이다.As such, when the sintered friction material 31 is separated from the hold plate 33, there is a problem in exerting a braking force. In particular, in a railroad vehicle traveling at a high speed, the braking force may cause a large accident due to damage.

이에 본 고안은 상기한 바와 같은 문제점을 해소하기 위해 제안된 것으로서, 소결마찰재를 재질로 사용하는 경우에도 소결마찰재가 고온의 열팽창 등에 의해 이 소결마찰재가 지지되어 있는 홀더플레이트로부터 박리되어 떨어져 나가지 않게하여 고속철도차량의 안전을 보장할 수 있게 한 철도차량용 브레이크의 소결마찰재 접합구조를 제공하는데 그 목적이 있다.The present invention has been proposed to solve the problems described above, so that even when using the sintered friction material as a material, the sintered friction material does not peel off from the holder plate on which the sintered friction material is supported by high temperature thermal expansion or the like. An object of the present invention is to provide a sintered friction material joining structure of a brake for a railway vehicle that can ensure the safety of a high-speed railway vehicle.

상기한 바의 목적을 달성하기 위한 본 고안은, 바닥면에 걸림턱과 관통구멍을 갖춘 철망형태의 메시홀더의 내부에 환형의 홀드플레이트가 끼워져 상기 메시홀드의 걸림턱에 홀드플레이트의 접합턱이 걸려진 상태에서 접합되고, 상기 메시홀드의 바닥면에 형성된 관통구멍을 통해 이 메시홀드의 외부로 노출된 홀드플레이트의 돌기부가 백플레이트에 접합되어있으며, 상기 홀드플레이트에 소결마찰재가 소결성형과정을 통해 접합되어 있는 구조로 되어 있다.The present invention for achieving the object of the above bar, the annular hold plate is fitted in the mesh holder of the wire mesh form having a hooking jaw and a through-hole on the bottom surface, the joining jaw of the hold plate on the locking jaw of the mesh hold The protrusion of the hold plate exposed to the outside of the mesh hold through the through hole formed in the bottom surface of the mesh hold is bonded to the back plate, and the sintered friction material is sintered in the hold plate. The structure is joined together.

이러한 구조로 되어 있는 본 고안은, 브레이크 마찰재인 소결마찰재가 직접부착되어 있는 홀드플레이트가 메시홀드의 안쪽으로 끼워져 이 메시홀드의 바닥면에 형성된 걸림턱에 홀드플레이트의 접합턱이 걸려져 접합되어 있으면서, 상기 홀드플레이트에 소결마찰재가 소결접합되어 있기 때문에, 이 소결마찰재에 마찰에 의한 열이 발생되어도 메시홀드와 홀드플레이트사이에 열팽창과 수축에 의한 박리현상이 일어나지 않게 될 뿐만 아니라, 소결마찰재가 홀드플레이트에서 떨어져 나가는 현상이 발생되지 않게 한다.According to the present invention having such a structure, the hold plate to which the sintered friction material, which is a brake friction material, is directly attached, is fitted inside the mesh hold, and the joining jaw of the hold plate is joined to the engaging jaw formed on the bottom surface of the mesh hold. Since the sintered friction material is sintered and bonded to the hold plate, even if heat generated by friction is generated, the sintered friction material does not peel off due to thermal expansion and contraction between the mesh hold and the hold plate. Avoid falling off the plate.

따라서, 소결마찰재를 브레이크판으로 사용하는 고속철도차량에서 마찰열에 의해 소결마찰재가 지지판인 홀드플레이트에서 박리되어 떨어져 나가는 현상이 발생하지 않게 되어 안전을 도모할 수가 있는 것이다.Therefore, in the high-speed railway vehicle using the sintered friction material as a brake plate, the phenomenon that the sintered friction material is peeled off from the hold plate, which is the support plate, by the heat of friction does not occur, and safety can be achieved.

도 1 은 본 고안에 따른 철도차량용 브레이크의 소결마찰재를 지지하는 지지구조물이 결합되는 중간과정을 도시한 개략적 단면도,1 is a schematic cross-sectional view showing an intermediate process in which a support structure for supporting a sintered friction material of a brake for a railway vehicle according to the present invention is combined;

도 2 는 본 고안에 따른 철도차량용 브레이크의 소결마찰재가 접합완료된 상태를 도시한 단면도,2 is a cross-sectional view showing a state in which the sintered friction material of the brake for the railroad vehicle according to the present invention is bonded;

도 3 은 종래의 일반적인 철도차량용 브레이크의 소결마찰재가 접합된 구조를 나타낸 개략적 단면도이다.3 is a schematic cross-sectional view showing a structure in which a sintered friction material of a conventional general rail vehicle brake is joined.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

1 - 걸림턱 2 - 관통구멍1-Jam Jaw 2-Through Hole

3 - 메시홀더 4 - 홀드플레이트3-Mesh Holder 4-Hold Plate

5 - 접합턱 6 - 백플레이트5-splice 6-backplate

7 - 소결마찰재7-Sintered Friction

이하 본 고안을 첨부한 예시도면을 참조하여 자세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도면 1은 본 고안에 따른 브레이크 시스템의 결합과정을 나타내는 개략도이도, 도면 2 는 본 고안에 따른 브레이크 시스템이 완전히 결합된 상태를 나타내는 단면도로서, 이들 도면에 도시된 바와 같이, 본 고안에 따른 철도차량용 브레이크의 소결마찰재 접합구조는 바닥면에 걸림턱(1)과 관통구멍(2)을 갖춘 철망형태의 메시홀더(3) 내부에 환형의 홀드플레이트(4)가 끼워져 상기 메시홀드(3)의 걸림턱(1)에 홀드플레이트(4)의 접합턱(5)이 걸려진 상태에서 접합되고, 상기 메시홀드(3)의 바닥면에 형성된 관통구멍(2)을 통해 이 메시홀드(3)의 외부로 노출된 홀드플레이트(4)의 돌기부(4a)가 백플레이트(6)에 접합되어있으며, 상기 홀드플레이트(4)에 소결마찰재(7)가 소결성형 접합되어 있는 구조로 되어 있다.1 is a schematic diagram showing a coupling process of a brake system according to the present invention, Figure 2 is a cross-sectional view showing a state in which the brake system according to the present invention is fully coupled, as shown in these drawings, for a railway vehicle according to the present invention The sintered friction material joining structure of the brake has an annular hold plate (4) fitted inside the mesh holder (3) of the wire mesh form having a locking jaw (1) and a through hole (2) on the bottom surface, so that the mesh hold (3) is caught. The outside of the mesh hold 3 through the through hole 2 formed in the bottom surface of the mesh hold 3 is joined to the jaw 1 when the joining jaw 5 of the hold plate 4 is caught. The projection 4a of the hold plate 4 exposed to the back plate 6 is joined to the back plate 6, and the sintered friction material 7 is sintered and joined to the hold plate 4 by the structure.

상기에서 소결마찰재(7)와 홀드플레이트(4)의 접합은 상기 소결마찰재(7)를 홀드플레이트(4)위에서 미리 소결성형시키므로써 이 홀드플레이트(4)에 대해 일체로 성형되게 된다.The bonding of the sintered friction material 7 and the hold plate 4 is integrally formed with respect to the hold plate 4 by sintering the sintered friction material 7 on the hold plate 4 in advance.

그리고, 상기 메시홀드(3)의 걸림턱(1)과 홀더플레이트(4)의 접합턱(5)을 접합시키는 방법으로서 용접 등의 방법을 사용하고, 또한 홀더플레이트(4)와 백플레이트(6)도 용접 등의 방법을 사용하여 접합시킨다.As the method of joining the engaging jaw 1 of the mesh holder 3 and the joining jaw 5 of the holder plate 4, a welding method or the like is used, and the holder plate 4 and the back plate 6 ) Is also joined using a method such as welding.

한편, 상기 메시홀더(3)는 철망구조로 되어 있으면서, 내부의 소결마찰재(7)를 간단하지 지지하고 있는 얼개의 역할만을 하고 이 소결마찰재(7)에 가해지는 브레이크하중을 직접적으로 지지해 주지는 않으며, 직접적인 하중의 지지는 상기 홀드플레이트(4)에 의해 이루어지게 된다.On the other hand, the mesh holder (3) has a wire mesh structure, and serves only as an earpiece that simply supports the internal sintered friction material (7), and directly supports the brake load applied to the sintered friction material (7). The support of the direct load is made by the hold plate 4.

이와 같은 과정을 통해 결합된 본 고안은, 상기 홀드플레이트(5)가 메시홀더(3)의 내부에 삽입된 상태에서 결합되어 있고, 소결마찰재(7)가 상기 홀드플레이트(5)에 직접 고정되어 있다.The present invention coupled through this process, the hold plate 5 is coupled in the state inserted into the mesh holder 3, the sintered friction material 7 is fixed directly to the hold plate (5) have.

따라서, 철도차량의 제동디스크에 직접 닿아 마찰하면서 그 마찰력으로 제동력을 발휘하는 소결마찰재(7)가 제동과정에서 고온으로 가열되고, 이 소멸마찰재(7)의 고열이 홀드플레이트(4)와 메시홀더(3)에 전달되어도, 상기 홀드플레이트(4)에 접합되어 있는 소결마찰재(7)가 홀드플레이트(4)로부터 박리되는 등의 문제가 없게 된다.Therefore, the sintered friction material 7 which directly touches and brakes the braking disk of the railway vehicle and exerts braking force by the frictional force is heated to a high temperature in the braking process, and the high heat of the destructive friction material 7 is held by the hold plate 4 and the mesh holder. Even if it is transmitted to (3), there is no problem that the sintered friction material 7 bonded to the hold plate 4 is peeled from the hold plate 4.

특히, 상기 메시홀더(3)가 소결마찰재(7)와 홀드플레이트(4)사이에 삽입되어 있는 구조가 아니기 때문에 이 메시홀더(3)가 열에 의해 수축팽창되는 과정을 되풀이하여도 이 메시홀더(3)가 소결마찰재(7)와 홀드플레이트(4)사이를 벌려놓는 역할을 하지 않게 되는 것이다.In particular, since the mesh holder 3 is not a structure inserted between the sintered friction material 7 and the hold plate 4, the mesh holder 3 is contracted and expanded by heat, and thus the mesh holder 3 3) does not play a role of opening the sintered friction material (7) and the hold plate (4).

따라서, 소결마찰재(7)가 제동시에 발생하는 고온의 마찰열에 의해 이 마찰재(7)를 지지하고 있는 홀드플레이트(6)로부터 떨어져 나가는 현상이 발생하지 않기 때문에 고속철도차량의 안전을 도모할 수 있게 되는 것이다.Therefore, the phenomenon that the sintered friction material 7 is separated from the hold plate 6 supporting the friction material 7 by the high temperature frictional heat generated during braking does not occur, so that the safety of the high speed railway vehicle can be secured. will be.

이상에서 설명한 바와 같이 본 고안에 따른 장치는, 브레이크 마찰재인 소결마찰재(7)가 직접부착되어 있는 홀드플레이트(4)가 메시홀드(3)의 안쪽으로 끼워져 이 메시홀드(3)의 바닥면에 형성된 걸림턱(1)에 홀드플레이트(4)의 접합턱(5)이 걸려져 접합되어 있으면서, 상기 홀드플레이트(4)에 소결마찰재(7)가 소결접합되어 있기 때문에, 이 소결마찰재(7)에 마찰에 의한 열이 발생되어도 이 소결마찰재(7)가 홀드플레이트(4)로부터 열팽창과 수축에 의한 박리현상이 일어나지 않게 할 수가 있으므로 고속철도차량의 안전을 도모할 수가 있는 것이다.As described above, in the apparatus according to the present invention, the hold plate 4, to which the sintered friction material 7, which is a brake friction material, is directly attached, is fitted into the mesh hold 3 to the bottom surface of the mesh hold 3. Since the sintered friction material 7 is sintered and joined to the hold plate 4 while the stiffened jaw 5 of the hold plate 4 is joined to the formed locking step 1, the sintered friction material 7 Even if heat is generated by friction, the sintered friction material 7 can prevent the peeling phenomenon due to thermal expansion and contraction from the hold plate 4, so that the safety of the high speed railway vehicle can be secured.

Claims (1)

바닥면에 걸림턱(1)과 관통구멍(2)을 갖춘 철망형태의 메시홀더(3) 내부에 환형의 홀드플레이트(4)가 끼워져 상기 메시홀드(3)의 걸림턱(1)에 홀드플레이트(4)의 접합턱(5)이 걸려진 상태에서 접합되고, 상기 메시홀드(3)의 바닥면에 형성된 관통구멍(2)을 통해 이 메시홀드(3)의 외부로 노출된 홀드플레이트(4)의 돌기부(4a)가 백플레이트(6)에 접합되어있으며, 상기 홀드플레이트(4)에 소결마찰재(7)가 소결성형 접합되어 이루어진 철도차량용 브레이크의 소결마찰재 접합구조.An annular hold plate 4 is fitted into the mesh holder 3 of the wire mesh shape having a locking jaw 1 and a through hole 2 on the bottom surface thereof, and the hold plate 1 is attached to the locking jaw 1 of the mesh hold 3. The hold plate 4 which is bonded in the state where the joining jaw 5 of the (4) is caught and exposed to the outside of the mesh hold 3 through the through hole 2 formed in the bottom surface of the mesh hold 3. Sintered friction material joining structure of a brake for a railway vehicle, in which a protrusion (4a) of the (6)) is joined to the back plate (6), and a sintered friction material (7) is sintered and molded to the hold plate (4).
KR2019980028431U 1998-12-31 1998-12-31 Assembling construction of the sintered friction material in a brake of a rail car KR200338391Y1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100821056B1 (en) * 2007-04-25 2008-04-08 대한소결금속 주식회사 Friction welding method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100821056B1 (en) * 2007-04-25 2008-04-08 대한소결금속 주식회사 Friction welding method

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